Mechanical anti-theft lock applied to well lid, unlocking device and well lid

Abstract

The invention discloses a mechanical anti-theft lock applied to a well lid, an unlocking device and the well lid. The mechanical anti-theft lock applied to the well lid comprises a lock shell. A rotatable lock cylinder is arranged in the lock shell in a penetrating manner. The lock cylinder is fixedly connected with a spring bolt. The lock shell is provided with a first opening and a second opening, wherein a set included angle is formed between the first opening and the second opening. The spring bolt is driven by the lock cylinder to rotate to the first opening to be clamped and stopped, and then locking is completed. The spring bolt is driven by the lock cylinder to rotate to the second opening to be clamped and stopped, and then unlocking is completed. The top of the lock cylinder is a convex face. The lock cylinder is provided with at least one convex block in the radial direction around the convex face. The mechanical anti-theft lock applied to the well lid is provided with the two openings, locking and unlocking are completed at the two openings correspondingly, the locking manner is easy to operate, and the locked state or unlocked state is stable. According to the mechanical anti-theft lock applied to the well lid, the top of the lock cylinder driving the spring bolt to conduct unlocking or locking is set to be the convex face, and the convex blocks are arranged around the convex face; and in this way, common tools cannot be matched with the lock cylinder, so that a lock body cannot be unlocked through the common tools, and therefore the anti-theft effect is effectively achieved.

Description

technical field [0001] The invention relates to a mechanical anti-theft lock and opening device and a well cover applied to a well cover. Background technique [0002] With the development of modern urban construction, heat pipes, gas pipes, etc. are buried underground, and more and more power and communication cables are also used in underground pipelines to reduce the factors affected by the weather. . For the convenience of maintenance and management, many manhole covers are arranged on these pipelines. However, manhole covers are stolen or opened illegally. Once lost or illegally opened, the phenomenon of "well eating people" is prone to occur, which poses a threat to the safety of pedestrians and vehicles. After the manhole cover is stolen, the manhole cover needs to be reinstalled, which increases maintenance costs; Or someone illegally invades and damages the equipment and cables, resulting in major accidents such as communication interruption, power supply interrup...

AI Technical Summary

Problems solved by technology

At present, there are only the following problems in the anti-theft lock of the manhole cover: the anti-theft design of the lock body is simple and easy to open illegally, the lock body is rusted or blocked by mud and the lock cannot be opened due to the failure, the opening is difficult and the operation is inconvenient

In short, the existing lock body is very difficult to open illegally, and the on-site operation is also very difficult; the high-precision parts fail due to the rusty soil caused by the poor road environment... Such phenomena abound

Although the existing manhole cover locking device is difficult to open the lock body, there are two defects: one is that two hands are required to operate at the same time when opening the manhole cover, one holds the key and the other holds the latch, which is difficult to operate; the other is that the manhole cover lock is easy to rust 1. Mud blockage and failure, because the environment is poor, vehicles, pedestrians, rain, mud, even if there is a protective cover, it is easy to damage and mud enters to block the bearing, which eventually leads to lock body failure

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